Home / 83,668.55-115,464.49-45,942.80

Finding the Fourth Proportional to 83,668.55, 115,464.49 and 45,942.80

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Solution

The fourth proportional to 83,668.55, 115,464.49 and 45,942.80 is: 63,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,668.55 : 115,464.49 = 45,942.80 : x
  2. Step 2: Convert to fraction form
    83,668.55/115,464.49 = 45,942.80/x
  3. Step 3: Cross multiply
    83,668.55x = 115,464.49 × 45,942.80
  4. Step 4: Simplify right side
    83,668.55x = 5,304,761,278.99
  5. Step 5: Solve for x
    x = 5,304,761,278.99/83,668.55
  6. Step 6: Final answer
    x = 63,402.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.